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Keywords: wave velocity
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0036
... learning well logging Artificial Intelligence Reservoir Characterization neural network abdulraheem transit time wave velocity prediction correlation gamma ray log analysis Upstream Oil & Gas empirical correlation compressional resistivity wave transit time sonic wave transit time...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0138
... with the existing methods and experimental data, the velocities are always slightly overestimated; the origin of this bias is tentatively studied. flow in porous media calculation shear wave well logging Simulation tensor Reservoir Characterization Upstream Oil & Gas wave velocity porosity...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1545
... wellbore integrity compressibility Wellbore Design ductile Barnett wave velocity Wolfcamp Reservoir Characterization Upstream Oil & Gas unconventional rock mechanical property mechanical property Poisson rock mechanical property brittleness index elevated temperature thermal shock...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0511
... ABSTRACT: Accurate estimation of shear wave velocity (V S ) is pivotal for many petrophysical and geomechanical applications. Actual V S measurements can be obtained from well logs and laboratory tests. However, due to the cost and time-saving purposes, V S is not often measured...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1666
... stresses. INTRODUCTION tight gas cement block sample shale gas multistage fracturing complex reservoir scioto sandstone sample chemically-induced pressure pulse mechanical property hydraulic fracturing Upstream Oil & Gas reactive chemical presentation wave velocity chemical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1887
.... Upstream Oil & Gas particle size sand control wave velocity sand control measure flow assurance sand production hydrate reservoir experimental study rock sample gas hydrate sediment sand production experiment reservoir Modeling & Simulation experiment hydrate hydrate formation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2185
... by using the growth rate of a. This procedure provides a new idea for the research of blasting cumulative damage theory. Upstream Oil & Gas wave velocity porosity Reservoir Characterization attenuation vibration velocity Engineering wave test particle vibration velocity application...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0405
... Fluid Dynamics wave velocity sensitivity shale outcrop Vernik Upstream Oil & Gas elastic anisotropy sensitivity parameter permeability anisotropy sensitivity coefficient shale shale sample anisotropy complex reservoir elastic velocity longmaxi shale sample permeability measurement...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0491
... deformation. Laboratory experiments were conducted with granite and diabase basement rock samples. Evolution of compressional and shear wave velocity with increasing confining pressure was measured through a series of ultrasonic velocity tests. A suite of uniaxial and triaxial tests were conducted to measure...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1038
... as function of shearing rate. We also observe that the wave velocity is sensitive to gouge formation at the joint. This mechanism is induced by sliding and enhanced with shearing rate. At low shearing rates, in the VS region, small amounts of debris are formed, slightly strengthening the joint. At high...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1200
... of different time, temperature, and pressure on the mechanical properties of sandstone, such as rock compressive strength, tensile strength, wave velocity, and mineral composition, etc. The sandstone outcrop samples mined from Chang 6 block of Yanchang Oilfield (which is located in Yanchang County, Shaanxi...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-447
... and materials wave velocity reservoir geomechanics coal immersion time drilling fluid water drilling fluid failure characteristic Reservoir Characterization Upstream Oil & Gas drilling fluid effect variation polymer drilling fluid biodegradable polymer drilling Longitudinal wave wave...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1422
... in highly heterogeneous formations such as fluvial and lacustrine sedimentary rocks. Acoustic/sonic P-wave velocity (Vp) provides one of the best proxies for formation strength, but it is stress- and frequency-dependent. Vp-strength relationships, therefore, can be very sensitive to experimental conditions...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-438
... models based on experimental studies. Based on experimental research in the laboratory, this paper presents a new prediction model. The ant colony optimization algorithm is used to optimize the P-wave velocity of shallow gas/shallow water flow, and then through the analysis of the control equations...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1177
... of variations in rate and state friction law parameters with changes in the sliding velocity and normal stress as well as changes in ultrasonic wave properties such as the transmitted amplitude and wave velocity. The variations in ultrasonic waves were monitored and compared during both velocity weakening...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0483
.... The effect of the fracture angle and number of cracks on the transmitted P wave velocity and corresponding travel time ratio were investigated. This study was conducted on blocks of artificially prepared rock specimens casted with gypsum plaster, introducing artificial joints at various angles. The variation...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0360
.... Salt crystallization has produced an increase of initial porosity of samples from a mean value of 1.19% (initial condition) to 2.91% after 30 cycles. Regarding compressional wave velocities the average value in the fresh gneiss is around 4530 m/s while in the salt weathered gneiss the average value...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0327
... values of this well. 1. INTRODUCTION machine learning Reservoir Characterization Artificial Intelligence well logging wave velocity Salman field reservoir geomechanics Upstream Oil & Gas geomechanical model dalan formation moduli elastic parameter geomechanical unit three...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0306
... of tested specimens. 1. INTRODUCTION Reservoir Characterization Upstream Oil & Gas wave velocity ae release Wellbore Design Brine brine concentration mechanical property structural geology concentration different saturation condition threshold wellbore integrity strength...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-128
.... An EMT-based model of physical properties of Bentheimer sandstone is successfully developed and tested. The model is based on results of microstructure analysis of the sandstone samples and experimental data on elastic wave velocities (V p and V s ) and TC of the samples in two saturation states (dry...

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